Uppers of leather and synthetic materials. P.H.F. provides two layers of memory foam that line the collar and old to your heel, creating a personalized fit. Wet Grip outsole is made from a special blend of organic and non-organic components, designed to enhance traction even on wet surfaces. NC Rubber outsole features a compound containing more natural rubber content than traditional solid rubber, resulting in enhanced traction on court systems. SpEVA midsole material improves bounce back characteristics and decreases midsole breakdown. Impact Guidance System employs linked componentry to enchance the foot's natural gait from heel strike to toe-off. PGuarda" Toe protector for added durability. ASICS High Abrasion Rubber is placed in critical ares of the outsole for exceptional durability. Rearfoot GEL Cushioning System attenuates shock during impact phase and allows for a smooth transition to midstance. Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe. Imported.